The wobble board offers an unstable surface that provides sensory input and helps children learn to balance, improves proprioceptive awareness and automatic postural reactions. This 14 inch Cando Balance Board has two pieces, the top and the bottom, and the top has raised surface circles that make it slip-resistant and also provides extra sensory input. The Cando Balance Board is ideal for exercise and rehabilitation treatment and is great for kids with Autism to help improve balance and body awareness.